Home / 27,821.06-38,372.73-20,269.70

Finding the Fourth Proportional to 27,821.06, 38,372.73 and 20,269.70

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Solution

The fourth proportional to 27,821.06, 38,372.73 and 20,269.70 is: 27,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,821.06 : 38,372.73 = 20,269.70 : x
  2. Step 2: Convert to fraction form
    27,821.06/38,372.73 = 20,269.70/x
  3. Step 3: Cross multiply
    27,821.06x = 38,372.73 × 20,269.70
  4. Step 4: Simplify right side
    27,821.06x = 777,803,725.28
  5. Step 5: Solve for x
    x = 777,803,725.28/27,821.06
  6. Step 6: Final answer
    x = 27,957.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.